diff --git a/poi/src/main/java/org/apache/poi/ss/usermodel/DateUtil.java b/poi/src/main/java/org/apache/poi/ss/usermodel/DateUtil.java
index bead9cef3c..0f44be4279 100644
--- a/poi/src/main/java/org/apache/poi/ss/usermodel/DateUtil.java
+++ b/poi/src/main/java/org/apache/poi/ss/usermodel/DateUtil.java
@@ -78,8 +78,8 @@ public class DateUtil {
     private static final Pattern date_ptrn5 = Pattern.compile("^\\[DBNum([123])]");
 
     private static final DateTimeFormatter dateTimeFormats = new DateTimeFormatterBuilder()
-            .appendPattern("[dd MMM[ yyyy]][[ ]h:m[:s][.SSS] a][[ ]H:m[:s][.SSS]]")
-            .appendPattern("[[yyyy ]dd-MMM[-yyyy]][[ ]h:m[:s][.SSS] a][[ ]H:m[:s][.SSS]]")
+            .appendPattern("[d[.] [MMMM][MMM][ yyyy]][[ ]h:m[:s][.SSS] a][[ ]H:m[:s][.SSS]]")
+            .appendPattern("[[yyyy ]d-[MMMM][MMM][-yyyy]][[ ]h:m[:s][.SSS] a][[ ]H:m[:s][.SSS]]")
             .appendPattern("[M/dd[/yyyy]][[ ]h:m[:s][.SSS] a][[ ]H:m[:s][.SSS]]")
             .appendPattern("[[yyyy/]M/dd][[ ]h:m[:s][.SSS] a][[ ]H:m[:s][.SSS]]")
             .parseDefaulting(ChronoField.YEAR_OF_ERA, LocaleUtil.getLocaleCalendar().get(Calendar.YEAR))
diff --git a/poi/src/test/java/org/apache/poi/ss/formula/functions/TestValue.java b/poi/src/test/java/org/apache/poi/ss/formula/functions/TestValue.java
index 33d1e7bfa4..57d35e9604 100644
--- a/poi/src/test/java/org/apache/poi/ss/formula/functions/TestValue.java
+++ b/poi/src/test/java/org/apache/poi/ss/formula/functions/TestValue.java
@@ -29,9 +29,13 @@ import org.apache.poi.ss.formula.eval.NumberEval;
 import org.apache.poi.ss.formula.eval.StringEval;
 import org.apache.poi.ss.formula.eval.ValueEval;
 import org.apache.poi.ss.util.Utils;
+import org.apache.poi.util.LocaleUtil;
 import org.junit.jupiter.api.Test;
 
 import java.io.IOException;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.Locale;
 
 /**
  * Tests for {@link Value}
@@ -85,6 +89,14 @@ final class TestValue {
         confirmValue("4:48:00", 0.2);
     }
 
+    @Test
+    void testDates() {
+        confirmValue("1 January 2025", 45658);
+        confirmValue("01 January 2025", 45658);
+        confirmValue("1 Jan 2025", 45658);
+        confirmValue("01 Jan 2025", 45658);
+    }
+
     @Test
     void testErrors() {
         confirmValueError("1+1");